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Detection of Dense Molecular Gas in Inter-Arm Spurs in M51
S. A. Corder, K. Sheth, N. Z. Scoville +3
Spiral arm spurs are prominent features that have been observed in extinction and 8m emission in nearby galaxies. In order to understand their molecular gas properties, we used…
Relation Between Stellar Mass and Star Formation Activity in Galaxies
Bahram Mobasher, T. Dahlen, A. Hopkins +8
For a mass-selected sample of 66544 galaxies with photometric redshifts from the Cosmic Evolution Survey (COSMOS), we examine the evolution of star formation activity as a function…
Warm Molecular Gas in M51: Mapping the Excitation Temperature and Mass of H_2 with the Spitzer Infrared Spectrograph
G. Brunner, K. Sheth, L. Armus +7
We have mapped the warm molecular gas traced by the H_2 S(0) - H_2 S(5) pure rotational mid-infrared emission lines over a radial strip across the nucleus and disk of M51 (NGC 5194…
The effects of environment on morphological evolution between 0<z<1.2 in the COSMOS Survey
P. L. Capak, R. G. Abraham, R. S. Ellis +4
We explore the evolution of the morphology density relation using the COSMOS-ACS survey and previous cluster studies. The Gini parameter measured in a Petrosian aperture is found t…
Dust Masses, PAH Abundances, and Starlight Intensities in the SINGS Galaxy Sample
B. T. Draine, D. A. Dale, G. Bendo +17
Physical dust models are presented for 65 galaxies in the SINGS survey that are strongly detected in the four IRAC bands and three MIPS bands. For each galaxy we estimate (1) the t…
A Potential Galaxy Threshing System in the Cosmos Field
S. S. Sasaki, Y. Taniguchi, N. Scoville +26
We report on the discovery of a new potential galaxy threshing system in the COSMOS 2 square degree field using the prime-focus camera, Suprime-Cam, on the 8.2 m Subaru Telescope.…